veranderen customer sales thinking verandermanagement change #hypotheken #mortgage #danishmortgagemodel #housin loyalty engagement customer retention cialdini influence change management spencer johnson kaas arie blokland change cheese negotiate business onderhandelen klant contact kla social media verkoop klanten linkedin accountmanagement 2010 klantcontact commercieel potentiele klanten contact commercial verkopen sales consultant advisor adviseur verkoop denken creative imagine creativity creatief veranderwiel verandermanagementcoaching wheel of change positive positief coachen changing verandering
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